Validated ideas - List of 5,000 poorly executed but popular apps
IdeasAI - OpenAI-powered startup idea generator
The 25 Days of Ideas - Free resources for coming up with startup ideas
First 100 Users - Get your startup's first 100 users.
Startup Idea Finder - Pitch your ideas against each other to find a clear WINNER!
Generating Product Ideas - Find ideas for your next business or side project